mirror of https://github.com/pulumi/pulumi.git
760 lines
22 KiB
Go
760 lines
22 KiB
Go
// Copyright 2020-2024, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package python
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import (
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"bufio"
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"bytes"
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"fmt"
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"io"
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"math/big"
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"strings"
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"unicode"
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"github.com/hashicorp/hcl/v2"
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"github.com/hashicorp/hcl/v2/hclsyntax"
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"github.com/zclconf/go-cty/cty"
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"github.com/pulumi/pulumi/pkg/v3/codegen/hcl2/model"
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"github.com/pulumi/pulumi/pkg/v3/codegen/pcl"
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"github.com/pulumi/pulumi/pkg/v3/codegen/schema"
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"github.com/pulumi/pulumi/sdk/v3/go/common/util/contract"
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)
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type nameInfo int
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func (nameInfo) Format(name string) string {
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return PyName(name)
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}
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func (g *generator) lowerExpression(expr model.Expression, typ model.Type) (model.Expression, []*quoteTemp) {
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// TODO(pdg): diagnostics
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expr = pcl.RewritePropertyReferences(expr)
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skipToJSONWhenRewritingApplies := true
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expr, diags := pcl.RewriteAppliesWithSkipToJSON(expr, nameInfo(0), false, skipToJSONWhenRewritingApplies)
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expr, lowerProxyDiags := g.lowerProxyApplies(expr)
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expr, convertDiags := pcl.RewriteConversions(expr, typ)
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expr, quotes, quoteDiags := g.rewriteQuotes(expr)
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diags = diags.Extend(lowerProxyDiags)
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diags = diags.Extend(convertDiags)
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diags = diags.Extend(quoteDiags)
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g.diagnostics = g.diagnostics.Extend(diags)
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return expr, quotes
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}
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func (g *generator) GetPrecedence(expr model.Expression) int {
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// Precedence is taken from https://docs.python.org/3/reference/expressions.html#operator-precedence.
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switch expr := expr.(type) {
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case *model.AnonymousFunctionExpression:
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return 1
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case *model.ConditionalExpression:
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return 2
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case *model.BinaryOpExpression:
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switch expr.Operation {
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case hclsyntax.OpLogicalOr:
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return 3
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case hclsyntax.OpLogicalAnd:
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return 4
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case hclsyntax.OpGreaterThan, hclsyntax.OpGreaterThanOrEqual, hclsyntax.OpLessThan, hclsyntax.OpLessThanOrEqual,
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hclsyntax.OpEqual, hclsyntax.OpNotEqual:
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return 6
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case hclsyntax.OpAdd, hclsyntax.OpSubtract:
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return 11
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case hclsyntax.OpMultiply, hclsyntax.OpDivide, hclsyntax.OpModulo:
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return 12
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default:
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contract.Failf("unexpected binary expression %v", expr)
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}
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case *model.UnaryOpExpression:
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return 13
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case *model.FunctionCallExpression, *model.IndexExpression, *model.RelativeTraversalExpression,
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*model.TemplateJoinExpression:
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return 16
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case *model.ForExpression, *model.ObjectConsExpression, *model.SplatExpression, *model.TupleConsExpression:
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return 17
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case *model.LiteralValueExpression, *model.ScopeTraversalExpression, *model.TemplateExpression:
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return 18
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default:
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contract.Failf("unexpected expression %v of type %T", expr, expr)
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}
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return 0
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}
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func (g *generator) GenAnonymousFunctionExpression(w io.Writer, expr *model.AnonymousFunctionExpression) {
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g.Fgen(w, "lambda")
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for i, p := range expr.Signature.Parameters {
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if i > 0 {
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g.Fgen(w, ",")
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}
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g.Fgenf(w, " %s", PyName(p.Name))
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}
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g.Fgenf(w, ": %.v", expr.Body)
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}
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func (g *generator) GenBinaryOpExpression(w io.Writer, expr *model.BinaryOpExpression) {
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var opstr string
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precedence := g.GetPrecedence(expr)
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switch expr.Operation {
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case hclsyntax.OpAdd:
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opstr = "+"
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case hclsyntax.OpDivide:
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opstr = "/"
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case hclsyntax.OpEqual:
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opstr = "=="
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case hclsyntax.OpGreaterThan:
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opstr = ">"
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case hclsyntax.OpGreaterThanOrEqual:
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opstr = ">="
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case hclsyntax.OpLessThan:
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opstr = "<"
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case hclsyntax.OpLessThanOrEqual:
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opstr = "<="
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case hclsyntax.OpLogicalAnd:
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opstr = "and"
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case hclsyntax.OpLogicalOr:
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opstr = "or"
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case hclsyntax.OpModulo:
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opstr = "%"
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case hclsyntax.OpMultiply:
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opstr = "*"
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case hclsyntax.OpNotEqual:
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opstr = "!="
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case hclsyntax.OpSubtract:
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opstr = "-"
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default:
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opstr, precedence = ",", 0
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}
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g.Fgenf(w, "%.[1]*[2]v %[3]v %.[1]*[4]o", precedence, expr.LeftOperand, opstr, expr.RightOperand)
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}
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func (g *generator) GenConditionalExpression(w io.Writer, expr *model.ConditionalExpression) {
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g.Fgenf(w, "%.2v if %.2v else %.2v", expr.TrueResult, expr.Condition, expr.FalseResult)
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}
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func (g *generator) GenForExpression(w io.Writer, expr *model.ForExpression) {
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closedelim := "]"
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if expr.Key != nil {
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// Dictionary comprehension
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//
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// TODO(pdg): grouping
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g.Fgenf(w, "{%.v: %.v", expr.Key, expr.Value)
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closedelim = "}"
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} else {
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// List comprehension
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g.Fgenf(w, "[%.v", expr.Value)
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}
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if expr.KeyVariable == nil {
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g.Fgenf(w, " for %v in %.v", expr.ValueVariable.Name, expr.Collection)
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} else {
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g.Fgenf(w, " for %v, %v in %.v", expr.KeyVariable.Name, expr.ValueVariable.Name, expr.Collection)
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}
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if expr.Condition != nil {
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g.Fgenf(w, " if %.v", expr.Condition)
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}
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g.Fprint(w, closedelim)
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}
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func (g *generator) genApply(w io.Writer, expr *model.FunctionCallExpression) {
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// Extract the list of outputs and the continuation expression from the `__apply` arguments.
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applyArgs, then := pcl.ParseApplyCall(expr)
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if len(applyArgs) == 1 {
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// If we only have a single output, just generate a normal `.apply`.
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g.Fgenf(w, "%.16v.apply(%.v)", applyArgs[0], then)
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} else {
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// Otherwise, generate a call to `pulumi.all([]).apply()`.
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g.Fgen(w, "pulumi.Output.all(\n")
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g.Indented(func() {
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for i, arg := range applyArgs {
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argName := then.Signature.Parameters[i].Name
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g.Fgenf(w, "%s%s=%v", g.Indent, argName, arg)
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if i < len(applyArgs)-1 {
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g.Fgen(w, ",")
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}
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g.Fgen(w, "\n")
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}
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})
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g.Fgen(w, ").apply(lambda resolved_outputs: ")
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rewrittenLambdaBody := rewriteApplyLambdaBody(then, "resolved_outputs")
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g.Fgenf(w, "%.v)\n", rewrittenLambdaBody)
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}
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}
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// functionName computes the Python package, module, and name for the given function token.
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func functionName(tokenArg model.Expression) (string, string, string, hcl.Diagnostics) {
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token := tokenArg.(*model.TemplateExpression).Parts[0].(*model.LiteralValueExpression).Value.AsString()
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tokenRange := tokenArg.SyntaxNode().Range()
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// Compute the resource type from the Pulumi type token.
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pkg, module, member, diagnostics := pcl.DecomposeToken(token, tokenRange)
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return makeValidIdentifier(pkg), strings.ReplaceAll(module, "/", "."), title(member), diagnostics
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}
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var functionImports = map[string][]string{
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"fileArchive": {"pulumi"},
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"remoteArchive": {"pulumi"},
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"assetArchive": {"pulumi"},
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"fileAsset": {"pulumi"},
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"stringAsset": {"pulumi"},
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"remoteAsset": {"pulumi"},
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"filebase64": {"base64"},
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"filebase64sha256": {"base64", "hashlib"},
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"readDir": {"os"},
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"toBase64": {"base64"},
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"fromBase64": {"base64"},
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"toJSON": {"json"},
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"sha1": {"hashlib"},
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"stack": {"pulumi"},
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"project": {"pulumi"},
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"organization": {"pulumi"},
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"cwd": {"os"},
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"mimeType": {"mimetypes"},
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}
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func (g *generator) getFunctionImports(x *model.FunctionCallExpression) []string {
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if x.Name != pcl.Invoke {
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return functionImports[x.Name]
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}
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pkg, _, _, diags := functionName(x.Args[0])
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contract.Assertf(len(diags) == 0, "unexpected diagnostics: %v", diags)
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return []string{"pulumi_" + pkg}
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}
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func (g *generator) GenFunctionCallExpression(w io.Writer, expr *model.FunctionCallExpression) {
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switch expr.Name {
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case pcl.IntrinsicConvert:
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from := expr.Args[0]
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to := pcl.LowerConversion(from, expr.Signature.ReturnType)
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output, isOutput := to.(*model.OutputType)
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if isOutput {
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to = output.ElementType
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}
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switch to := to.(type) {
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case *model.EnumType:
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components := strings.Split(to.Token, ":")
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contract.Assertf(len(components) == 3, "malformed token %v", to.Token)
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enum, ok := pcl.GetSchemaForType(to)
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if !ok {
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// No schema was provided
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g.Fgenf(w, "%.v", expr.Args[0])
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return
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}
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var moduleNameOverrides map[string]string
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if pkg, err := enum.(*schema.EnumType).PackageReference.Definition(); err == nil {
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if pkgInfo, ok := pkg.Language["python"].(PackageInfo); ok {
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moduleNameOverrides = pkgInfo.ModuleNameOverrides
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}
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}
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pkg := strings.ReplaceAll(components[0], "-", "_")
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enumName := tokenToName(to.Token)
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if m := tokenToModule(to.Token, nil, moduleNameOverrides); m != "" {
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modParts := strings.Split(m, "/")
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if len(modParts) == 2 && strings.EqualFold(modParts[1], enumName) {
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m = modParts[0]
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}
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pkg += "." + strings.ReplaceAll(m, "/", ".")
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}
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if isOutput {
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g.Fgenf(w, "%.v.apply(lambda x: %s.%s(x))", from, pkg, enumName)
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} else {
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diag := pcl.GenEnum(to, from, func(member *schema.Enum) {
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tag := member.Name
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if tag == "" {
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tag = fmt.Sprintf("%v", member.Value)
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}
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tag, err := makeSafeEnumName(tag, enumName)
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contract.AssertNoErrorf(err, "error sanitizing enum name")
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g.Fgenf(w, "%s.%s.%s", pkg, enumName, tag)
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}, func(from model.Expression) {
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g.Fgenf(w, "%s.%s(%.v)", pkg, enumName, from)
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})
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if diag != nil {
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g.diagnostics = append(g.diagnostics, diag)
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}
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}
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default:
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switch arg := from.(type) {
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case *model.ObjectConsExpression:
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g.genObjectConsExpression(w, arg, expr.Type())
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default:
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g.Fgenf(w, "%.v", expr.Args[0])
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}
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}
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case pcl.IntrinsicApply:
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g.genApply(w, expr)
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case "element":
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g.Fgenf(w, "%.16v[%.v]", expr.Args[0], expr.Args[1])
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case "entries":
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g.Fgenf(w, `[{"key": k, "value": v} for k, v in %.v]`, expr.Args[0])
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case "fileArchive":
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g.Fgenf(w, "pulumi.FileArchive(%.v)", expr.Args[0])
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case "remoteArchive":
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g.Fgenf(w, "pulumi.RemoteArchive(%.v)", expr.Args[0])
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case "assetArchive":
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g.Fgenf(w, "pulumi.AssetArchive(%.v)", expr.Args[0])
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case "fileAsset":
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g.Fgenf(w, "pulumi.FileAsset(%.v)", expr.Args[0])
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case "stringAsset":
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g.Fgenf(w, "pulumi.StringAsset(%.v)", expr.Args[0])
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case "remoteAsset":
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g.Fgenf(w, "pulumi.RemoteAsset(%.v)", expr.Args[0])
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case "filebase64":
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g.Fgenf(w, "(lambda path: base64.b64encode(open(path).read().encode()).decode())(%.v)", expr.Args[0])
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case "filebase64sha256":
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// Assuming the existence of the following helper method
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g.Fgenf(w, "computeFilebase64sha256(%v)", expr.Args[0])
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case "notImplemented":
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g.Fgenf(w, "not_implemented(%v)", expr.Args[0])
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case "singleOrNone":
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g.Fgenf(w, "single_or_none(%v)", expr.Args[0])
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case "mimeType":
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g.Fgenf(w, "mimetypes.guess_type(%v)[0]", expr.Args[0])
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case pcl.Invoke:
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if expr.Signature.MultiArgumentInputs {
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err := fmt.Errorf("python program-gen does not implement MultiArgumentInputs for function '%v'",
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expr.Args[0])
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panic(err)
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}
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pkg, module, fn, diags := functionName(expr.Args[0])
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contract.Assertf(len(diags) == 0, "unexpected diagnostics: %v", diags)
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if module != "" {
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module = "." + module
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}
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name := fmt.Sprintf("%s%s.%s", pkg, module, PyName(fn))
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isOut := pcl.IsOutputVersionInvokeCall(expr)
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if isOut {
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name = name + "_output"
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}
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if len(expr.Args) == 1 {
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g.Fprintf(w, "%s()", name)
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return
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}
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optionsBag := ""
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if len(expr.Args) == 3 {
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var buf bytes.Buffer
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if invokeOptions, ok := expr.Args[2].(*model.ObjectConsExpression); ok {
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if isOut {
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g.Fgen(&buf, ", opts=pulumi.InvokeOutputOptions(")
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} else {
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g.Fgen(&buf, ", opts=pulumi.InvokeOptions(")
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}
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for i, item := range invokeOptions.Items {
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last := i == len(invokeOptions.Items)-1
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key := PyName(pcl.LiteralValueString(item.Key))
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g.Fgenf(&buf, "%s=%v", key, item.Value)
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if !last {
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g.Fgen(&buf, ", ")
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}
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}
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g.Fgen(&buf, ")")
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}
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optionsBag = buf.String()
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}
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g.Fgenf(w, "%s(", name)
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genFuncArgs := func(objectExpr *model.ObjectConsExpression) {
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indenter := func(f func()) { f() }
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if len(objectExpr.Items) > 1 {
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indenter = g.Indented
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}
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indenter(func() {
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for i, item := range objectExpr.Items {
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// Ignore non-literal keys
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key, ok := item.Key.(*model.LiteralValueExpression)
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if !ok || !key.Value.Type().Equals(cty.String) {
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continue
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}
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keyVal := PyName(key.Value.AsString())
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if i == 0 {
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g.Fgenf(w, "%s=%.v", keyVal, item.Value)
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} else {
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g.Fgenf(w, ",\n%s%s=%.v", g.Indent, keyVal, item.Value)
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}
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}
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})
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}
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switch arg := expr.Args[1].(type) {
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case *model.FunctionCallExpression:
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if argsObject, ok := arg.Args[0].(*model.ObjectConsExpression); ok {
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genFuncArgs(argsObject)
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}
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case *model.ObjectConsExpression:
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genFuncArgs(arg)
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}
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g.Fgenf(w, "%v)", optionsBag)
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case "join":
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g.Fgenf(w, "%.16v.join(%v)", expr.Args[0], expr.Args[1])
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case "length":
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g.Fgenf(w, "len(%.v)", expr.Args[0])
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case "lookup":
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if len(expr.Args) == 3 {
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g.Fgenf(w, "(lambda v, def: v if v is not None else def)(%.16v[%.v], %.v)",
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expr.Args[0], expr.Args[1], expr.Args[2])
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} else {
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g.Fgenf(w, "%.16v[%.v]", expr.Args[0], expr.Args[1])
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}
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case "range":
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g.Fprint(w, "range(")
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for i, arg := range expr.Args {
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if i > 0 {
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g.Fprint(w, ", ")
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}
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g.Fgenf(w, "%.v", arg)
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}
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g.Fprint(w, ")")
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case "readFile":
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g.Fgenf(w, "(lambda path: open(path).read())(%.v)", expr.Args[0])
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case "readDir":
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g.Fgenf(w, "os.listdir(%.v)", expr.Args[0])
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case "secret":
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g.Fgenf(w, "pulumi.Output.secret(%v)", expr.Args[0])
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case "unsecret":
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g.Fgenf(w, "pulumi.Output.unsecret(%v)", expr.Args[0])
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case "split":
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g.Fgenf(w, "%.16v.split(%.v)", expr.Args[1], expr.Args[0])
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case "toBase64":
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g.Fgenf(w, "base64.b64encode(%.16v.encode()).decode()", expr.Args[0])
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case "fromBase64":
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g.Fgenf(w, "base64.b64decode(%.16v.encode()).decode()", expr.Args[0])
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case "toJSON":
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if model.ContainsOutputs(expr.Args[0].Type()) {
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g.Fgenf(w, "pulumi.Output.json_dumps(%.v)", expr.Args[0])
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} else {
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g.Fgenf(w, "json.dumps(%.v)", expr.Args[0])
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}
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case "sha1":
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g.Fgenf(w, "hashlib.sha1(%v.encode()).hexdigest()", expr.Args[0])
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case "project":
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g.Fgen(w, "pulumi.get_project()")
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case "stack":
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g.Fgen(w, "pulumi.get_stack()")
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case "organization":
|
|
g.Fgen(w, "pulumi.get_organization()")
|
|
case "cwd":
|
|
g.Fgen(w, "os.getcwd()")
|
|
case "getOutput":
|
|
g.Fgenf(w, "%v.get_output(%v)", expr.Args[0], expr.Args[1])
|
|
default:
|
|
var rng hcl.Range
|
|
if expr.Syntax != nil {
|
|
rng = expr.Syntax.Range()
|
|
}
|
|
g.genNYI(w, "FunctionCallExpression: %v (%v)", expr.Name, rng)
|
|
}
|
|
}
|
|
|
|
func (g *generator) GenIndexExpression(w io.Writer, expr *model.IndexExpression) {
|
|
g.Fgenf(w, "%.16v[%.v]", expr.Collection, expr.Key)
|
|
}
|
|
|
|
type runeWriter interface {
|
|
WriteRune(c rune) (int, error)
|
|
}
|
|
|
|
func escapeRune(c rune) string {
|
|
if c < 0xFF {
|
|
return fmt.Sprintf("\\x%02x", c)
|
|
} else if c < 0xFFFF {
|
|
return fmt.Sprintf("\\u%04x", c)
|
|
}
|
|
return fmt.Sprintf("\\U%08x", c)
|
|
}
|
|
|
|
//nolint:errcheck
|
|
func (g *generator) genEscapedString(w runeWriter, v string, escapeNewlines, escapeBraces bool) {
|
|
for _, c := range v {
|
|
switch c {
|
|
case '\n':
|
|
if escapeNewlines {
|
|
w.WriteRune('\\')
|
|
w.WriteRune('n')
|
|
} else {
|
|
w.WriteRune(c)
|
|
}
|
|
continue
|
|
case '"', '\\':
|
|
if escapeNewlines {
|
|
w.WriteRune('\\')
|
|
w.WriteRune(c)
|
|
continue
|
|
}
|
|
case '{', '}':
|
|
if escapeBraces {
|
|
w.WriteRune(c)
|
|
w.WriteRune(c)
|
|
continue
|
|
}
|
|
}
|
|
|
|
if unicode.IsPrint(c) {
|
|
w.WriteRune(c)
|
|
continue
|
|
}
|
|
|
|
// This is a non-printable character. We'll emit a Python escape sequence for it.
|
|
codepoint := escapeRune(c)
|
|
for _, r := range codepoint {
|
|
w.WriteRune(r)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (g *generator) genStringLiteral(w io.Writer, quotes, v string) {
|
|
builder := &strings.Builder{}
|
|
|
|
builder.WriteString(quotes)
|
|
escapeNewlines := quotes == `"` || quotes == `'`
|
|
g.genEscapedString(builder, v, escapeNewlines, false)
|
|
builder.WriteString(quotes)
|
|
|
|
g.Fgenf(w, "%s", builder.String())
|
|
}
|
|
|
|
func (g *generator) GenLiteralValueExpression(w io.Writer, expr *model.LiteralValueExpression) {
|
|
typ := expr.Type()
|
|
if cns, ok := typ.(*model.ConstType); ok {
|
|
typ = cns.Type
|
|
}
|
|
|
|
switch typ {
|
|
case model.BoolType:
|
|
if expr.Value.True() {
|
|
g.Fgen(w, "True")
|
|
} else {
|
|
g.Fgen(w, "False")
|
|
}
|
|
case model.NoneType:
|
|
g.Fgen(w, "None")
|
|
case model.NumberType:
|
|
bf := expr.Value.AsBigFloat()
|
|
if i, acc := bf.Int64(); acc == big.Exact {
|
|
g.Fgenf(w, "%d", i)
|
|
} else {
|
|
f, _ := bf.Float64()
|
|
g.Fgenf(w, "%g", f)
|
|
}
|
|
case model.StringType:
|
|
quotes := g.quotes[expr]
|
|
g.genStringLiteral(w, quotes, expr.Value.AsString())
|
|
default:
|
|
contract.Failf("unexpected literal type in GenLiteralValueExpression: %v (%v)", expr.Type(),
|
|
expr.SyntaxNode().Range())
|
|
}
|
|
}
|
|
|
|
func (g *generator) GenObjectConsExpression(w io.Writer, expr *model.ObjectConsExpression) {
|
|
g.genObjectConsExpression(w, expr, expr.Type())
|
|
}
|
|
|
|
func objectKey(item model.ObjectConsItem) string {
|
|
switch key := item.Key.(type) {
|
|
case *model.LiteralValueExpression:
|
|
return key.Value.AsString()
|
|
case *model.TemplateExpression:
|
|
// assume a template expression has one constant part that is a LiteralValueExpression
|
|
if len(key.Parts) == 1 {
|
|
if literal, ok := key.Parts[0].(*model.LiteralValueExpression); ok {
|
|
return literal.Value.AsString()
|
|
}
|
|
}
|
|
}
|
|
|
|
return ""
|
|
}
|
|
|
|
func (g *generator) genObjectConsExpression(w io.Writer, expr *model.ObjectConsExpression, destType model.Type) {
|
|
targetType := pcl.LowerConversion(expr, destType)
|
|
typeName := g.argumentTypeName(expr, targetType) // Example: aws.s3.BucketLoggingArgs
|
|
td := g.typedDictEnabled(expr, targetType)
|
|
if typeName != "" && !td {
|
|
// If a typeName exists, and it's not for a typedDict, treat this as an Input Class
|
|
// e.g. aws.s3.BucketLoggingArgs(key="value", foo="bar", ...)
|
|
if len(expr.Items) == 0 {
|
|
g.Fgenf(w, "%s()", typeName)
|
|
} else {
|
|
g.Fgenf(w, "%s(\n", typeName)
|
|
g.Indented(func() {
|
|
for _, item := range expr.Items {
|
|
g.Fgenf(w, "%s", g.Indent)
|
|
propertyKey := objectKey(item)
|
|
g.Fprint(w, PyName(propertyKey))
|
|
g.Fgenf(w, "=%.v,\n", item.Value)
|
|
}
|
|
})
|
|
g.Fgenf(w, "%s)", g.Indent)
|
|
}
|
|
} else {
|
|
// Otherwise treat this as a typed or untyped dictionary e.g. {"key": "value", "foo": "bar", ...}
|
|
if len(expr.Items) == 0 {
|
|
g.Fgen(w, "{}")
|
|
} else {
|
|
g.Fgen(w, "{")
|
|
g.Indented(func() {
|
|
for _, item := range expr.Items {
|
|
if td {
|
|
// If we're inside a typedDict, use the PyName of the key.
|
|
propertyKey := objectKey(item)
|
|
key := PyName(propertyKey)
|
|
g.Fgenf(w, "\n%s%q: %.v,", g.Indent, key, item.Value)
|
|
} else {
|
|
g.Fgenf(w, "\n%s%.v: %.v,", g.Indent, item.Key, item.Value)
|
|
}
|
|
}
|
|
})
|
|
g.Fgenf(w, "\n%s}", g.Indent)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (g *generator) genRelativeTraversal(w io.Writer, traversal hcl.Traversal, parts []model.Traversable) {
|
|
for _, traverser := range traversal {
|
|
var key cty.Value
|
|
switch traverser := traverser.(type) {
|
|
case hcl.TraverseAttr:
|
|
key = cty.StringVal(PyName(traverser.Name))
|
|
case hcl.TraverseIndex:
|
|
key = traverser.Key
|
|
default:
|
|
contract.Failf("unexpected traverser of type %T (%v)", traverser, traverser.SourceRange())
|
|
}
|
|
|
|
switch key.Type() {
|
|
case cty.String:
|
|
keyVal := PyName(key.AsString())
|
|
contract.Assertf(isLegalIdentifier(keyVal), "illegal identifier: %q", keyVal)
|
|
g.Fgenf(w, ".%s", keyVal)
|
|
case cty.Number:
|
|
idx, _ := key.AsBigFloat().Int64()
|
|
g.Fgenf(w, "[%d]", idx)
|
|
default:
|
|
keyExpr := &model.LiteralValueExpression{Value: key}
|
|
diags := keyExpr.Typecheck(false)
|
|
contract.Ignore(diags)
|
|
|
|
g.Fgenf(w, "[%v]", keyExpr)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (g *generator) GenRelativeTraversalExpression(w io.Writer, expr *model.RelativeTraversalExpression) {
|
|
g.Fgenf(w, "%.16v", expr.Source)
|
|
g.genRelativeTraversal(w, expr.Traversal, expr.Parts)
|
|
}
|
|
|
|
func (g *generator) GenScopeTraversalExpression(w io.Writer, expr *model.ScopeTraversalExpression) {
|
|
rootName := PyName(expr.RootName)
|
|
if g.isComponent {
|
|
configVars := map[string]*pcl.ConfigVariable{}
|
|
for _, configVar := range g.program.ConfigVariables() {
|
|
configVars[configVar.Name()] = configVar
|
|
}
|
|
|
|
if _, isConfig := configVars[expr.RootName]; isConfig {
|
|
if _, configReference := expr.Parts[0].(*pcl.ConfigVariable); configReference {
|
|
rootName = fmt.Sprintf("args[\"%s\"]", expr.RootName)
|
|
}
|
|
}
|
|
}
|
|
|
|
if _, ok := expr.Parts[0].(*model.SplatVariable); ok {
|
|
rootName = "__item"
|
|
}
|
|
|
|
g.Fgen(w, rootName)
|
|
g.genRelativeTraversal(w, expr.Traversal.SimpleSplit().Rel, expr.Parts)
|
|
}
|
|
|
|
func (g *generator) GenSplatExpression(w io.Writer, expr *model.SplatExpression) {
|
|
g.Fgenf(w, "[%.v for __item in %.v]", expr.Each, expr.Source)
|
|
}
|
|
|
|
func (g *generator) GenTemplateExpression(w io.Writer, expr *model.TemplateExpression) {
|
|
quotes := g.quotes[expr]
|
|
escapeNewlines := quotes == `"` || quotes == `'`
|
|
|
|
prefix, escapeBraces := "", false
|
|
for _, part := range expr.Parts {
|
|
if lit, ok := part.(*model.LiteralValueExpression); !ok || !model.StringType.AssignableFrom(lit.Type()) {
|
|
prefix, escapeBraces = "f", true
|
|
break
|
|
}
|
|
}
|
|
|
|
b := bufio.NewWriter(w)
|
|
defer b.Flush()
|
|
|
|
g.Fprintf(b, "%s%s", prefix, quotes)
|
|
for _, expr := range expr.Parts {
|
|
if lit, ok := expr.(*model.LiteralValueExpression); ok && model.StringType.AssignableFrom(lit.Type()) {
|
|
g.genEscapedString(b, lit.Value.AsString(), escapeNewlines, escapeBraces)
|
|
} else {
|
|
g.Fgenf(b, "{%.v}", expr)
|
|
}
|
|
}
|
|
g.Fprint(b, quotes)
|
|
}
|
|
|
|
func (g *generator) GenTemplateJoinExpression(w io.Writer, expr *model.TemplateJoinExpression) {
|
|
g.genNYI(w, "TemplateJoinExpression")
|
|
}
|
|
|
|
func (g *generator) GenTupleConsExpression(w io.Writer, expr *model.TupleConsExpression) {
|
|
switch len(expr.Expressions) {
|
|
case 0:
|
|
g.Fgen(w, "[]")
|
|
case 1:
|
|
g.Fgenf(w, "[%.v]", expr.Expressions[0])
|
|
default:
|
|
g.Fgen(w, "[")
|
|
g.Indented(func() {
|
|
for _, v := range expr.Expressions {
|
|
g.Fgenf(w, "\n%s%.v,", g.Indent, v)
|
|
}
|
|
})
|
|
g.Fgen(w, "\n", g.Indent, "]")
|
|
}
|
|
}
|
|
|
|
func (g *generator) GenUnaryOpExpression(w io.Writer, expr *model.UnaryOpExpression) {
|
|
opstr, precedence := "", g.GetPrecedence(expr)
|
|
switch expr.Operation {
|
|
case hclsyntax.OpLogicalNot:
|
|
opstr = "not "
|
|
case hclsyntax.OpNegate:
|
|
opstr = "-"
|
|
}
|
|
g.Fgenf(w, "%[2]v%.[1]*[3]v", precedence, opstr, expr.Operand)
|
|
}
|