1302fc8a47
This change performs template expansion both for root stack documents in addition to the transitive closure of dependencies. There are many ongoing design and implementation questions about how this should actually work; please see marapongo/mu#7 for a discussion of them.
50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
// Copyright 2016 Marapongo, Inc. All rights reserved.
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package compiler
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import (
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"github.com/marapongo/mu/pkg/ast"
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"github.com/marapongo/mu/pkg/diag"
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"github.com/marapongo/mu/pkg/errors"
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"github.com/marapongo/mu/pkg/workspace"
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)
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// buildDocumentFE runs the front-end phases of the compiler.
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func (c *compiler) buildDocumentFE(w workspace.W, doc *diag.Document) *ast.Stack {
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// If there's a workspace-wide settings file available, load it up.
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wdoc, err := w.ReadSettings()
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if err != nil {
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// TODO: we should include the file information in the error message.
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c.Diag().Errorf(errors.ErrorIO, err)
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return nil
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}
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// Now create a parser to create ASTs from the workspace settings file and Mufile.
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p := NewParser(c)
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if wdoc != nil {
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// Store the parsed AST on the workspace object itself.
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*w.Settings() = *p.ParseWorkspace(doc)
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}
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// TODO[marapongo/mu#7]: for top-level stacks with arguments, they need to be supplied at the CLI.
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stack := p.ParseStack(doc, nil)
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// If any parser errors occurred, bail now to prevent needlessly obtuse error messages.
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if !p.Diag().Success() {
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return nil
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}
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// Now create a parse tree analyzer to walk the parse trees and ensure that all is well.
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ptAnalyzer := NewPTAnalyzer(c)
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if wdoc != nil {
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ptAnalyzer.AnalyzeWorkspace(w.Settings())
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}
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ptAnalyzer.AnalyzeStack(stack)
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// If any errors happened during parse tree analysis, exit.
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if !p.Diag().Success() {
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return nil
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}
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return stack
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}
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